Last updated: October 14, 2026
The information and tools on this website, including the sleep calculator, are for general informational and educational purposes only. They are not medical advice and are not a substitute for professional diagnosis, treatment or advice from a qualified healthcare provider.
The calculator uses an average sleep cycle of 90 minutes and an average 15 minutes to fall asleep. Real sleep varies by person, age, health, medication, caffeine, stress and environment. Results are estimates and may not match your own sleep pattern.
If you have persistent trouble sleeping, snore heavily, stop breathing during sleep, feel excessively tired during the day, or have any medical condition, please consult a doctor or sleep specialist. Never ignore or delay seeking professional advice because of something you read on this Site.
Do not rely on this tool to decide whether you are well enough rested to drive, operate machinery or perform safety-critical tasks.
We try to keep content accurate and up to date, but we make no guarantees about completeness, reliability or suitability. Use of the Site is at your own risk.
The Site may link to external websites. We are not responsible for their content, accuracy or practices.
Sleep Calculator and its owners are not liable for any loss or harm arising from use of, or reliance on, the information or results provided here. See also our Terms & Conditions.
Questions? Please contact us through the contact details provided on this website.